Czasopismo | OCHRONA PRZED KOROZJĄ | Rocznik 2020 - zeszyt 1

The influence of deposition process parameters on protective properties of silane films

Wpływ parametrów procesu osadzania na własności ochronne powłok silanowych

10.15199/40.2020.1.2

EDYTA OWCZAREK

nr katalogowy: 124571
10.15199/40.2020.1.2

Streszczenie

Chromiany i fosforany były tradycyjnie stosowane w celu ochrony powierzchni metalowych przed procesami korozji. Ze względu na ich wysoką toksyczność i rakotwórczość, cienkie warstwy na bazie silanów są obecnie z powodzeniem testowane jako alternatywna obróbka wstępna różnych metali i ich stopów. Procedura osadzania filmu silanowego jest łatwa do zastosowania za pomocą kilku metod, takich jak konwencjonalne powlekanie zanurzeniowe, osadzanie elektrolityczne, powlekanie wirowe lub natryskiwanie i wcieranie. Własności ochronne powłok silanowych (struktura, stabilność w czasie, szczelność, odporność na korozję) są związane z parametrami roztworu silanu (typ silanu, skład i stężenie, pH), a także ze sposobem aplikacji i procesem suszenia w określonej temperaturze osadzanej powłoki. W artykule omówiono wpływ parametrów procesu osadzania na własności ochronne powłok silanowych.

Abstract

Chromates and phosphates have traditionally been used in order to protect metallic surfaces from corrosion processes. Due to their high toxicity and carcinogenicity, silane- based thin films are now successfully tested as an alternative pre-treatment for various metals and their alloys. The silane film deposition procedure is easy applicable by several methods such as conventional dip-coating, electro-assisted deposition, spin-coating or by spraying and wiping. The protective properties of silane film (structure, stability in time, compactness, resistance to corrosion attack) are related to the parameters of the silane solution (type of silane, composition and concentration, pH) as well as application method and drying process at a fixed temperature of the deposited film. The paper discusses the influence of the parameters of the deposition process on the protective properties of silane films.

Słowa kluczowe

Keywords

Bibliografia

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